Answer:
[tex]-2\frac{-1}{2}[/tex]
Step-by-step explanation:
To distribute the -6, multiply every numerator by -6, this gets you
-6/4+12/3-30/6
To put these together, they all need to have a common denominator. We can make all of the denomiators 12 by multiplying the numerator by whatever we multiply the denominators by to get 12.
-18/12+48/12-60/12
This gets you -30/12
To make this a proper fraction, divide -30 by 12 and put the whole number to the left of the fraction (-2), making a mixed number. The remainder stays a fraction which is -6/12. This reduces down to -1/2. Put -2 and -1/2 together to get [tex]-2\frac{-1}{2}[/tex]
3x-5 (2x+6) = 4(2x+3)+18
Answer:
= − 4
Step-by-step explanation:
Stanley is looking to retire and move near the ocean. The Jersey Shore has seen a rise in sea levels the past few years. These high tides have caused floods in 100 places that call themselves Jersey Shore towns, which are on or within reasonable distance of the ocean. Stanley is nervous about possible floods and would like to be prepared for costs associated with them. As Stanley’s friend and an expert in risk management, you collect past information and have constructed the following probability distribution for the number of floods per town per summer at the Jersey Shore. # of floods per town per summer Probability 0 0.10 1 0.15 2 0.26 3 0.30 4 0.15 5 0.04 a. Calculate the expected frequency of floods per town per summer. (2 points) b. Calculated the variance. (2 points)
Answer:
2.37 ; 1.6731
Step-by-step explanation:
Given the data:
X:___0____1____2____3____4____5
P(x):_0.10_0.15_0.26__0.30_0.15__0.04
the expected frequency of floods per town per summer
Σ(flood per Town per summer) * probability
Σ(X)*p(x)
Σ(0*0.10) + (1*0.15) + (2*0.26) + (3*0.30) + (4*0.15) + (5*0.04)
= (0 + 0.15 + 0.52 + 0.90 + 0.60 + 0.2)
= 2.37
Variance (s²) :
Σ[x². P(x)] - u²
Using an online variance calculator to save computation time :
s² = 16731 / 10000
s² = 1.6731
c) Write j(x) -h(x) in standard form.
Answer:
The answer is 0.
Step-by-step explanation:
The value of an ambulance depreciated by 17.5% from the purchase price of $35,400 a
year ago. What is its current value?
Answer:
29,205
Step-by-step explanation:
100% - 17.5% = 82.5%
82.5% * 35,400 = answer
make percent a decimal
.825 * 35,400 = 29,205
29,205 is answer
The required current value of the ambulance is given as $29,205.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
The value of an ambulance depreciated by 17.5% from the purchase price of $35,400 a year ago.
Current price = 35400[1 - 0.175]
Current price = $29,205
Thus, the required current value of the ambulance is given as $29,205.
Learn more about percentages here:
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One class is selling tickets for $2.50 each and has already raised $350.
• The other class is selling tickets for $3.00 each and has already raised $225.
Which equation can be used to find t, the number of tickets each class needs to sell so that the total amount raised is the same for both classes?
Answer: 2.5t + 350 = 3t + 225
t = 250 btw
Answer:
b
Step-by-step explanation:
b
What is the value of a?
Enter your answer in the box. Enter your answer as a simplified fraction.
==========================================
Work Shown:
The scalar (2/5a+6) multiplies with the matrix on the left side to get the matrix on the right side
So this is what your steps could look like
[tex](\frac{2}{5}a+6)\begin{bmatrix}3 \\ -2 \\ 7\end{bmatrix}=\begin{bmatrix}15 \\ -10 \\ 35\end{bmatrix}\\\\\\\begin{bmatrix}(\frac{2}{5}a+6)*3 \\ (\frac{2}{5}a+6)*(-2) \\ (\frac{2}{5}a+6)*7\end{bmatrix}=\begin{bmatrix}15 \\ -10 \\ 35\end{bmatrix}\\\\\\[/tex]
[tex]\begin{bmatrix}\frac{2}{5}a*3+6*3 \\ \frac{2}{5}a*(-2)+6*(-2) \\ \frac{2}{5}a*7+6*7\end{bmatrix}=\begin{bmatrix}15 \\ -10 \\ 35\end{bmatrix}\\\\\\\begin{bmatrix}\frac{6}{5}a+18 \\ -\frac{4}{5}a-12 \\ \frac{14}{5}a+42\end{bmatrix}=\begin{bmatrix}15 \\ -10 \\ 35\end{bmatrix}\\\\\\[/tex]
The last matrix equation leads to this system of equations
[tex]\begin{cases}\frac{6}{5}a+18=15 \\ -\frac{4}{5}a-12=-10 \\ \frac{14}{5}a+42=35\end{cases}\\\\\\[/tex]
If we pick any of those equations, and solve for 'a', then we'll get our answer.
---------------------
Let's say we pick the first equation
(6/5)a+18 = 15
(6/5)a = 15-18
(6/5)a = -3
a = -3(5/6)
a = -15/6
a = -5/2
--------------------
If we pick on the second equation, then,
(-4/5)a-12 = -10
(-4/5)a = -10+12
(-4/5)a = 2
a = 2(-5/4)
a = -10/4
a = -5/2
--------------------
Or we could solve the third equation for 'a'
(14/5)a+42 = 35
(14/5)a = 35-42
(14/5)a = -7
a = -7*(5/14)
a = -35/14
a = -5/2
-------------------
You only need to solve one equation to find 'a', though it's good practice to solve all three to see all three rows agreeing with one another.
The multiplication of the matrix by a constant will multiply for each term in the matrix value of the "a" given system of the matrix will be -2.5.
What is a matrix?A matrix is a collection of numbers lined up in rows and columns to produce a rectangular array.
In computer graphics, where they have been used to describe picture transformations and other alterations, matrices have vital applications as well in many sectors.
As per the given system of the matrix.
When we multiply anything in a matrix then it will multiply to each and every term of the matrix.
Therefore the (2/5)a + 6 will be multiplied by 3,-2, and 7 each.
So the first term of the left-hand side matrix becomes,[(2/5)a + 6]3
If we compare two matrices then each corresponding term will be the same.
Therefore, the first term of the left-hand matrix = first term of the right-hand matrix
[(2/5)a + 6]3 = 15
6a/5 + 18 = 15
6a/5 = -3
6a = -15
a = -15/6 = -2.5
Hence "The value of the "a" given system of the matrix will be -2.5".
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SUPER EASY, ILL GIVE A BRAINLIEST THINGY TO FIRST ANSWER. At the store, two brands are sold. Brand A is offered as 6 for $0.85. Brand B is offered as 8 for $1.00. Which brand is the better buy?
Answer:
8 for $1.00
step by step explanation:
6 divided by 2 over 3
Answer: 1
Step-by-step explanation: 6/2=3 3/3= 1
Answer:
9
Step-by-step explanation:
6 divided by [tex]\frac{2}{3}[/tex] 2 over 3
6/(2/3) = 9
Check- [tex]\frac{2}{3}[/tex]*9 = 6
Harvey has 514 stamps. He places an equal number of stamps in 3 stamp books. How many stamps are in each book? Are there any stamps left over
72 red roses, 60 pink roses, and 48 yellow roses. What is the greatest number of bouquets that the florist can make if no roses are left over?
Answer:
12 bouquets
Step-by-step explanation:
Determine what the greatest common factor is in this case...
72/12 = 6 red roses
60/12 = 5 pink roses
48/12 = 4 yellow roses
As you can see the greatest common factor is 12. Therefore the greatest number of bouquets that the florist can make if no roses are left over should be 12 bouquets.
Martina swam 4 kilometers against the current in the same amount of time it took her to swim 12 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would Martina swim if there were no current
Rename 3/10 and 2/3 using the least common denominator.
Answer:
LCD = 30
3/10 = 9/30
2/3 = 20/30
Step-by-step explanation:
This is the answer because:
1) First, the least common denominator is 30 because 10 x 3 is 30 and 3 x 10 is 30
2) Next, multiply the numerators with the same number you multiplied with the denominator
3 x 3 = 9
2 x 10 = 20
3) Therefore, the answers are:
3/10 = 9/30
2/3 = 20/30
Hope this helps!
Which property of addition is shown in the equation below?
a + bi + 0 + Oi = a + bi
A.commutative property
B.inverse property
C.identity property
D.associative property
Chloe bought three pounds of strawberries for $16.80. What is the price, in dollars per ounce of strawberries?
Answer:
$5.60
Step-by-step explanation:
Each pound of strawberries costs $5.60.
To solve: $16.80 divided by 3
why my bawls itch so much its annoying
Answer:
is this a joke
Step-by-step explanation:
Answer:
scrath
Step-by-step explanation:
reach down. give itch, happ.y
Solve for y
1/3y+2=1/7y
Answer:
y=2
y=0
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
7*y-1-(3*y^2+y-1)=0
(7y - 1) - ((3y2 + y) - 1) = 0 3.1 Pull out like factors :
6y - 3y2 = -3y • (y - 2)
Answer:
y = -21/2
Step-by-step explanation:
multiply both sides of the equation by 21 so it would be
7y+42=3y
move the terms
7y-3y=-42
collect like terms
4y=-42
divide both sides by four
y= -21/2
This is due soon solve asap please.
Answer:
Home to school through mall: 11 miles
Home to school through theater: 13 miles
Step-by-step explanation:
The route from home to school that passes the mall is x + 1 + x + 2 = 2x + 3.
The route from home to school that passes the theater is 2x + 1 + x = 3x + 1.
The route from home to school that passes the mall is 2 miles shorter than the route that passes by the theater.
2x + 3 = 3x + 1 - 2
2x + 3 = 3x - 1
-x = -4
x = 4
Home to school through mall:
2x + 3 = 2(4) + 3 = 11
Home to school through theater:
3x + 1 = 3(4) + 1 = 13
Answer:
Home to school through mall: 11 miles
Home to school through theater: 13 miles
A fraction with fractions in either the numerator or the denominator or both is called a _____.
complex fraction
mixed fraction
compound fraction
parallel fraction
Answer:
Compound fraction
Step-by-step explanation:
You're welcome
Answer:
Compound fraction
Step-by-step explanation:
What he said
helllllpp pleaseeeeeee
9514 1404 393
Answer:
B. x +6y = 4.45; x +12y = 5.65
Step-by-step explanation:
The problem statement defines the variables for you. Using x and y for the cost of a loaf and the cost of an egg, respectively, each purchase can be represented by an equation of the form ...
(number of loaves)x + (number of eggs)y = (amount spent)
The first purchase is described as
number of loaves = 1number of eggs = 6amount spent = 4.45equation: x +6y = 4.45The second purchase is of a dozen eggs, which is 12 eggs. The description of this purchase can be ...
number of loaves = 1number of eggs = 12amount spent = 5.65equation: x +12y = 5.65The situation can be represented by the equations shown in the attachment.
**Find the component form of the resultant vector.**
Answer:
[tex]\overrightarrow{AB}+\overrightarrow{CD}=(-3,-7)[/tex]
Step-by-step explanation:
Vector Addition
We are given the points A=(1,3), B=(-4,5), C=(-2,10), D=(0,1). Find:
[tex]\overrightarrow{AB}+\overrightarrow{CD}[/tex]
First, find both vectors from the initial and final points:
[tex]\overrightarrow{AB}=(-4-1,5-3)=(-5,2)[/tex]
[tex]\overrightarrow{CD}=(0-(-2),1-10)=(2,-9)[/tex]
Now find the sum of both vector by adding the components separately:
[tex]\overrightarrow{AB}+\overrightarrow{CD}=(-5,2)+(2,-9)=(-3,-7)[/tex]
[tex]\boxed{\overrightarrow{AB}+\overrightarrow{CD}=(-3,-7)}[/tex]
simplify (7x +2) 3 +8x
If you had six candy bars and you gave 12 people an equal piece, how much would
each person receive?
Answer:1/2 a candy bar
Step-by-step explanation:6 / 12 = 1/2
After 3.5 hours, Peyton had traveled 161 miles. If she travels at a constant speed, how far will she have traveled in 4 hours
Answer:
1.3 more miles i think
Step-by-step e
3.5 hours equal 210 and i divided it by 163 and thats what came up
Answer:
46
Step-by-step explanation:
C:
Its correct dont worry!
By the way I have no idea why I am doing this but have some free emojis :D
✌︎ ✎ ☁︎☾ ABC: ℂℍℕℙℚℝV☘︎☞❀❁❄︎␘ I have way more but it does not fit D:0.1 is 1/10 as much as
Answer:
10%
Step-by-step explanation:
Because 0.1 is equivalent to 1/10 and 10%
*How far can a train travel in 45 minutes if it is traveling at 80 miles per hour.
Answer:
60 miles
Step-by-step explanation:
distance = speed x time
45 minutes = 0.75 hours
0.75 x 80 = 60
The total amount of money that he had deposited into his account at the end of March is what
Answer: 1,200.65+ 985.43+ 1,200.23= 3,386.31
Step-by-step explanation:
__,__,__,89,115,141 so
Answer:
11, 37, 63, 89, 115, 141
Step-by-step explanation:
Subtract 89 from 115 and you get 26.
Subtract 115 from 141 and you get 26.
Its a pattern, subtract 26 from 89 and you get 63, keep subtracting 26.
Answer:
11, 37, 63, 89, 115, 141
Step-by-step explanation:
Every time you proceed right you add 26 to the last number.
Every time you go left you take away 26 from the last number
Hope this helps:)
(just add until 89 is 115 and add the answer to 115 and see if the answer adds up)
Graph (f(x)+-2((x+3)(x-1). Label the x intercepts, vertex and axxis of symmetry
Answer: x-intercepts: (-3,0), (1,0)
vertex: (-1,8)
axis of symmetry: x = -1
Step-by-step explanation:
What quadrant would be ordered pair (-4,-6) fall in?
PERCENTAGE of 7.50 OF ₹6
Answer:%80 or 0.8
Step-by-step explanation:
Total = 7.50
Part of 7.50 is 6
The percentage of 6 in 7.50 is 6*100/7.50
0.8* 100
80%
Or you could do it this way:
6/7.5
x10 on both
60/75
by 5 times
12/15
4/5
=0.8
